Im torn on the benefits of UV
light for plants.
My wife uses UV
plant lights on a couple of our house plants and her friend grows rare plants as a semi-commercial hobby and recommends UV
. But it seems to be universally not recommended when it comes to aquatic plants.
tends to be sealed units to kill off bacteria and parasites, and i would tend to agree that having fish exposed to UV
would be risky. But if you had a plant only tank or refugium i cant see why UV
wouldnt promote fast growth of plants. Ive read speculation that UV
causes genetic defects in plants, but without evidence. Plants grow outside with plenty of UV
and no issues, and as said someone that specialises in rare plants recommends its use. As far as im aware UV
promotes fast growth, which is what you are after to consume nutrients.
Im fairly sure that ive read that specialist planted aquarium lights give out some UV
, but probably not as much as a UV